Processor device and operation method of processor device

Abstract

A processor device of a laparoscopic system includes a difficulty level calculation unit. The difficulty level calculation unit acquires puncture information related to a puncture candidate position and a puncture target, and calculates the puncture difficulty level in a case of performing the puncture from the puncture candidate position toward the puncture target with a puncture needle by using the acquired puncture information. The puncture difficulty level is calculated by using an angle between a puncture direction and a gravity direction, a size of the puncture target, and a distance from the puncture candidate position to the puncture target.

What is claimed is: 
     
         1 . A processor device configured to:
 acquire puncture information related to a puncture candidate position on a surface of a puncture target part and a puncture target inside the puncture target part; and   calculate a puncture difficulty level of puncturing from the puncture candidate position to the puncture target by using the puncture information.   
     
     
         2 . The processor device according to  claim 1 ,
 wherein the puncture difficulty level is notified.   
     
     
         3 . The processor device according to  claim 2 ,
 wherein the notification is performed by displaying the puncture candidate position and the puncture difficulty level superimposed on an optical image obtained by imaging the puncture target part.   
     
     
         4 . The processor device according to  claim 2 ,
 wherein the notification is performed by displaying the puncture candidate position and the puncture difficulty level superimposed on a three-dimensional image that includes the puncture target part.   
     
     
         5 . The processor device according to  claim 1 ,
 wherein the puncture difficulty level is calculated for a plurality of the puncture candidate positions.   
     
     
         6 . The processor device according to  claim 1 ,
 wherein the puncture information is acquired by using an ultrasound image obtained from a reflected wave of an ultrasound wave emitted from the surface of the puncture target part toward its interior.   
     
     
         7 . The processor device according to  claim 1 ,
 wherein the puncture difficulty level is calculated by using an angle between a gravity direction in which gravity occurs and a puncture direction from the puncture candidate position toward the puncture target.   
     
     
         8 . The processor device according to  claim 7 ,
 wherein the puncture difficulty level is calculated by using at least one of a distance from the puncture candidate position to the puncture target and a size of the puncture target.   
     
     
         9 . The processor device according to  claim 8 ,
 wherein the puncture difficulty level is calculated by using information on blood vessels in the puncture target part.   
     
     
         10 . An operation method of a processor device, the method comprising:
 acquiring puncture information related to a puncture candidate position on a surface of a puncture target part and a puncture target inside the puncture target part; and   calculating a puncture difficulty level of puncturing from the puncture candidate position to the puncture target by using the puncture information.